Coking-oven.



S. B. SHELDON. UOKING OVEN.

AIJILIUATIOB FILED MAY '1. 190e.

933,349. Panama sepas/,1909.

4 SHEETS-SHEET 1.

S. B. SHELDON.

comm OVEN. APPLICATION I'IL'ED MAY 7. 1908. 933,3490 Patented Sept. '7, 1909.

4 SHEETS-SHEET 2.

` 4 SHEETS-SHEET 3.

Patented Spt 7, 1909 NEX JYB S. B. SHELDON.

GOKING OVEN.

APPLIoATIoH FILED MY '1. 190s.

S. B. SHBLDON.1 comm OVEN. APPLIOATION FILED my 7. 190B.

Patented Sept. 7, 1909.

4 SEEETB-SHEET 4.

iiNiTED STATES PATENT onirica.

SAMUEL BEN-PRAM SHELDON, F BUFFALO, NEW YORK- comite-oven'.

specification of Letters samt. f

To all'whom 'Lt may concern: v

Beit known that I, SAMUEL B. SHELDON,

l' a citizen of'theUnited States, and a resident of Budalo, in the county 'of Erie and State of New York, 'have invented certain new and useful improvements in Cokiiig-Oveiis;Y and d0 hereby declare that the followine is a full, clear, and exact description thei'eo reference being had to the accompanying drawings, and to the numerals of reference marked thereon, which `form a part of this specification. l i

This invention relates to improvements in ovens employed for cokiiig or distilling coal` for the manufacture of coke and the production of gas, 'and more .particularly to a novel construction and arrangement of the coinbustion chambers, f lues and regenerators, in coking ovens of the type kno'wrias an Otto Hoffman oven, in which the coal, during ille/@cking operation, is contained within a closed coking chamber and is'siibjected to the action of thelieat transmitted thereto from upright fiues in the walls of said cham bei' and which embraces a plurality of re generators, by 'means of which the air furi nislied to eiect combustion ofthe fuel used fory heating the oven is heated preparatory to its -introduction into the passages in which combustion of the fuel takes place.

The invention consists in the matteis hereinafter described and pointed out in the ap ended claims.

ily `invention. maybe more readily under, stood by reference to the accompanying drawings, in Which,

Figure 1 is a view in longitudinal vertical cross-sectionof an apparatus embodying my invention, taken on lilie 1-.1 ofv'Fig.I 3. Fig. 2 is a like section taken on a plane passing through the heating 'fines of the oven,

on line 2 2 of Fig, 3. Fig. 3 isfa horizontal section taken on line-S of Figs; 1 and 2.

'Fig 4 is a horizontal section taken on Application filed my 7`, isos. serial No. 431,367.

heating means separate from the heating means of the other sectionl so that theteniperature maintained-in the two sec- Patcnteu sept. 7, i909. l

tions maybe ,independently or separately controlled.

The said coking oven/'isA pro- `vided with a series of coking chambers 1, 1, l 1 which are arranged side byside, as com,

mon in theconstriiction of f OttdHoiman i. ovens and which extendcontinuou'sly from l end to end of 'the oven, througliboth secjtions thereof.' In the wallsofithc oven 'which separate the coking chambers from I each other are formed vertical fines or heating passages 2, 2, 2 arranged generally in the same manner as the heating fluesof such Otto Hellman ovens.

' The ineans fory heating the two sections `of each coking chamber being alike, the parts or passages for the two sections are nuin-l bered alike in the drawings and the same description of said heating means will apply to'botli sections.

Beneath each section of .each cekng chamber are located three horizontally, on'gitun dinal passa .es 8, 4t and 5 arranged in line with each ot. er, or end to end, and separated from one another by vertical, transverse the passages 3 and 5" bein length of the passage et W ich 1s located between thev said passages 3 and 5'. Gonnected with thesaid rpassages 3, 4 and-'5 by means of f liles 9, 10 and 11 are regenerators 12, 13 and 14, the middle regenerator 13 being of twice the size or capacity as-the regenerators 12 and let. Said regenerators are located below. and extend transversely partitions 6. and 7 the combined lengths of equal to the of the coking chamber and -are provided .with the usual .checker work. Connected witlitlie lower parts of the i'egenerato'rs are passages or flues 15, ltaiid 17 which are adapted to be connected either with a stack l or chimney or with the air inlet passa e, as is common in coking ovens having a p ural.

ity of regenerators, as heretofore constructed. Between the longitudinal chambers. or passages 3, 4 fand 5 associatedwith two ad-. ,jacentcokiiig chambers are located three horizontal, elongated, longitudinally arranged combustion chambers 18, 19 and 20 in which is 'burned the gaseous fuel used for heating Ithe oven. Said cham-bers 18, 19 and 2O are arranged in end to end relation and c oinninnicate with the lower ends of theJ upright fli'ies or passages 2, 2', 2. Said combustion chambers are separated from one another by vertical partition Walls 21 and 22 which are latter above the pipe y joined to the lower ends of two ofthe partitionsbetween the iues 2, 2, 2, which latter are thereby divided into' three sets or groups, .corresponding with the three chambers 18,

19 and 20; 4the flues constituting each :grou

being connected at their lowerv ends witii oneyof said chambers.

to 'the external end wall of the oven, said pipes being made of interlockin tiles or tubes of retracto material."v As' ustrated,

,y the tiles constiftutlngv thepipe 23 rest on the 28 which are connected with the outer ends of the pipes 23, 24 and 25. The

passages 3, 4 and 5 are connected, respectlve with the combustion chambers18, 19 and 20 by means of holes or l bers 18, 1,9 and 20 the horizontal passage4 the openings 30,

said regenerator 13 apertures 29, 30 and 31 in the lon tudinal partition walls' between said cham ers `and passages.- Air forsupporting combustion is supplied to the chamfrom the regenerators, the same entering said chambers 18, 19 and 20 from the passages 3, 4- and 5 through the apertures 29, 30 and 31. The walls separating said passages 2, 2,2 support loosely at their upper ends blocks or bricks 35, 35,"35 of fire-clay or like material which are' ada ed to be shifted o'n the partitions to parta 1y close the said passages 2, 2, 2 and to thereby constitute valves for controllin the passage of combustion' products theret rough. For el'ectinvr the shifting of the said vbricks 35, 35, 35 there arep'rovided in the top wall of the oven, passages 36, 36, 36through which a poker or like implementY can-b inserted f for moving the said bricks 35, 35, 35. The

upper'I endsV of said passages 36, 36, 36 are slightly enlarged to accommodate cylindrlcal plugs 37, close the said passages and are provided with a lift ring or other suitable means whereby they may' be readily removed from the said passages for the insertion vof the poker or 'sociated passages is as ollows: Assuming the larger regenerator 13 to be connecte with the a'ir inlet and the two smaller r .generators-12 and 14 with the stack or chimney flue, air entering the flues 16, 16 of passes upwardly through the checker work previously heated, and such air in a heated condition passes through the passage 10 to from which, through it enters the chamber 19. Fuel as delivered to said chamber 19 from the pipe 24 is burned therein and the prod- Horizontal pipes 23 and 24 extend `from the- 1chambers19 and 20 ZOIlta genera tors. and

has the advantage or uniform dlstributwn of 37, 37 which are inserted to therein which has beenv uctsof combustion rise through the Vertical -v passages 2, 2 above the chamber 19 and passlnig horizontally to thevright and left along the passage 32 descends throu h the `lines 2, 2 above the chambers 18 an 20 into the latter chambers from whence' they ass through the openings 29 and 3 1 to the horipassages 3 'and 5 and thence through the iiues 9 and J11 to the regenerators 12 and 14 and out through the lu'es 15 and 17 to the stack. .After the checker work in the re-. generator 13 has become cooled andthat'in the regenerators 12 and 14 heated bythepassage therethrough of the outgoing prod-' ucts of combustion, the regenerator 13 is .connected with the stack and the regenerators 12 Aand 14 with the air supply duct.

Combustion then takesplace in the chambers 18 and 20-'and the products of combustion pass fromjsaid chambers through the ilues 2, 2 into the chamber 19 and'thence' out through the horizontal An oven made as described, withthree re-A With the upright heatin iiues 2, 2, 2, divided into three groups, o

passage 4 and the. n regenerator 13 to the stac which the central or intermediate groupefnl tains twice as many ilues as the end groups, of aiiording a morey equal heat throughout the' length of the coking chambers thanv is possible in an 'oven of the `Qtto. Hoffman type, as heretofore constructed, in which two regenerators of equal capacity two groups only of uprifght iiues'f'are employed.' In such an oven o the Otto Ho type the heated ing upwardly t flues into the horizontal passages at t of the same, tends to take the shortest possible path in its course from one ofthe regenerators to the other and are, therefore, able to' pass upwardly and downwardl through the upright fiues nearest'the part1- tion which divides the two sets :of fines so that the end portions of the coking chamber man3-f1 f glroducts o f combustion p aBsrough one set of u rlght.

are liable to receive little heat. This inequality in heating is liable to be eslpecially evident when a strong wind lowing a ainst one end of the oven, with the effect ot cooling the suine, inasmuch as the rising heated products of combustion will pass more readily through the more highlyA heated ues located midway between the ends of the oven, than through the cooler iues nt either end thereof. in an oven embodying my invention,^the heated products of combustion, either when rising through the central group, or through the ond groups of ilues, will be forced to the end portions of the sections of the oven, because necessarily coniined to the two groups, the rising or descending current of products of combustion may, under some conditions, pass through the three,l or four iues nearest the centralv dividing wall loe, tween the groups, and the four .external` lues, corresponding with one of applicants smaller groups, would have little or no heat# ling effect. ln `applicants construction illust trated on the contrary, approximately onehalt' of such. rising or descending current will be compelled to passthrough the group 'of four filles located adjacent to eachend Q cach section' of the oven.

lt wlll` be p understood that the general teatures of construction hereinbefore de'- scribed will be relied upon as the principal means for securing 'uniform distribution of heat in the oven, and that the movable tiles 35, 85, 35 need be used to control the flow of the products of combustion under unusual circumstances only, as, for instance, when it,

is' found desiable to constantlr direct a larger proportion ot' the heated products of heating lines arranged in three `roupma' horizontal passage at the top ot the oven with which the fines of all of Said groups communicate at their upper ends, three combustiou chambers connectedeach with (he lower ends of the tlues of one of the groups vand three regenerators severally connected 4 with said combustion chambers; the tlues ot' the intermediate group of tlues being subp stantially equal in area to the combined areas of both vot' the external groups and the capacity of the regenerato'r associated with said central group of lines being substantially equal to the combined capacities of the other two 1i-\generators.

A coking oven provided with upright 'heating tlucs arranged in three groups, a

horizontal passage at, thev top ofAthe oven withwhich the llues of all of. said groups `communicate at their upperends, three combustion chambers connected each with the I lower ends' of the lues of one of the groups, and three regenerators severally connected with said combustion chambers the lues ot the intermediate gro-up of tlues being sub# stantially equal in area to the A(.-oinloined areas ot' both ofthe external groups and the capacity of the -regenerator associated with said central group of lues being sub- -stantially equal to the combined capacit-ies of the other two regenerators and with valves at'the` upper ends of said upright fines for controllingthe passage of combustion products therethrough.

ln testimony, that claim the foregoing,

as in v invention l allix my. si ature inthe presence ot' two witnesses, this 30th day of pril l). 1908.

stuurt; Barreau summer.

' Witnesses: I

A. C. BYAM, lV. J. BRYAN.V 

